(third-person singular simple present bones up, present participle boning up, simple past and past participle boned up)
- In contemporary usage bone up is intransitive and often followed by on, or for, but in dated usage it was sometimes used with a direct object, as in:
- 1921, P. G. Wodehouse, Indiscretions of Archie, ch. 17,
- My idea was to get this book and coach the dear old chap. Rehearse him, don't you know. He could bone up the early chapters a bit and then drift round and try his convincing talk on me.